PHP 5.4 callback options
- $callback(), where $callback is string, array(2) or object with __call

git-tfs-id: [http://falcon:8080/tfs/Projects]$/Phalanger/Main;C4098
PHP 5.4: call on instantiation
- (new X)->method()...
- (new X)
- method call optimization if possible

git-tfs-id: [http://falcon:8080/tfs/Projects]$/Phalanger/Main;C4099
Merge branch 'master' of https://github.com/DEVSENSE/Phalanger